Valve base for pneumatic tires



Aug. 23

A. E. HENDERSON VALVE BASE FOR PNEUMATIC T IRES Filed Jan. 27, 1917 n ilk ll m 1 Albert Henderson Patented Aug. 23, 1 927.

UNITED? STATES,

ALBERT n vmsnnnnnnson, or-fronon'ro, on'ranro, can Ana.

v. VALVE ms: FOB- shimmer n ill a plication filed ianu ary 27, 1911. Serial No. 144,911.

My invention relates to improvements in reduced shoulder of the stem, so asto permit the same to be securely clamped by the washers of the valve stem. I

In my Patent No. 1,160,168, dated'the 16th day of November 1915, I duly protected that form of valve base in which the fabric -is slotted before being imbedded in the tube I I "offthe tube showing the relation of the parts in figure 3, taken on line l4of said figure,

in such: mannergthat the rubber of the tube fills the slot and not only permlts the expansion of-the slotted fabric,' but upon the base as shown in Figure 1, and

insertion of the stem pulls the fabric into normal position adjacent to the reduced shoulder of the stem.

In this particular patent I have not confined myself to any arrangement of the slotted fabric, but any form in which the slot in the fabric is different in its outline to the opening punched within the slot in the rubber of the tube for receiving the but- -Jon of the valve stem is duly covered by this patent.

In my present application the fabrlc strips are arranged in such form that they do not require to be slotted, but the relation of the several strips of fabric to each other is such as to provide for the necessary expansion of the base in order to admit the button of the valve stem.

The objects of my improvements are First. To provide a simple and convenient method of inserting the fabric for the valve base.

Second. To provide means whereby the valve base may be yieldingly connected with protecting strlps on the rim side of the tube.

ThirdQTo so arrange the fabric in the base that the stem may be readily inserted from without. 7

Fourth. To s surround the various portions of the fabric of the base with the rubber of the tube as to permit the fabric adjacent to the valve stem opening to elastically expand to permit the inserting of the valve button.

Fifth. To so arrange the rubber of the tube and the fabric that in its normal condition after the stem is inserted the fabric of the base Will be adjacent to the reduced portion of the valve stem.

tion shown in Figure 1,

Referring tethe accompanying drawings which are madea part hereof and on which similar reference characters indicate similar I parts, 7

of the'fabric of'the tube,"

Figure 2, a "fragmentary transverse sectional view showing radiallyth'e relation of the strips comprising the valve base, on line 22"o'f Figure l,

-Figure 3, a modified form of the construc-' igure 4, a fragmentary tranvers'e'sec 'tion Figure a further modification of the Figure 6, a fragmentary sectional transverse view of Figure 5, taken on line 66 of said figure.

In Figure 1-I show a section'of a tube 10, having the rim-side-reenforcing fabric strip broken transversely and separated from the adjacent end of the strip 15 by' the rubber of the tube, said strips 15 and 15' being superimposed upon the patches and 20, and separated radially from the same by the film of rubber 21, and in overlapping relation transversely and longitudinally with the said patches 20 and 20'. The strip of rubber 22, extending longitudinally between the adjacent sides of the patches 20 and 20 permits transverse expansion of the fabric of thetube in relation to the strips of fabric 15 and 15. Thus it will be seen Figure 1 is aplan View of a portionof the tube 'at the base showingfthe relation that the various sections of fabric comprisv 7 ing the base of the tube are each enveloped in the rubber of the tube and separated from each other. A fabric 24 is located over or outwardly of the spaced ends of patches 15, 15, this patch having an opening 25 for the valve, coinciding with the spaces between the adjacent edges of patches 20, 20 and strips or strip ends 15, 1-5.

In Figure 2 is shown the transverse relation of the parts 20 and 20, 15 and 24 in the transverse radial relation to each other, thus radially as Well as transversely and longitudinally the strips are all separated from each other.

The rubber of the tube is cut away showing the patch 24 having the slot 25.

In Figure 3 I have shown the patch 24 broken transversely at 31 superimposed upon the strip 15", Which is provided with lln an opening'32 disposed longitudinally of the tube, said strip being superimposed upon the patches and 20 and separated therefrom by a film of rubber 21 of the tube.

In Figure 4 is shown the transverse relation of the several portions of the base referred to in Figure 8.

In Figure 5 I show the patch 24/ proyi-ded with an opening 37 superimposed upon thestrip 15" provided with an opening 34 and separated radially by the film 35 from the patch 20", which is provided vwith an opening 33, the position of the a variety of forms in which the rubber of the tube envelopes in various constructions the, fabric of the valve base in such form that anelastic character is given to the base such as will permit the insertion of the button of the valve stem from without, and

such as will insure the proximity of the fabric imbedded in the tube to the reduced shoulder adjacent to the button of the stem. I have provided in all the several views means whereby the valve base may be overlappingly connected with any protecting strips on the rim side of the tube. V

I do not confine myself to the construction shown in the several figures described'invthe specifications, as certain variations may be made in tl16 f01'l11 of the construction embodying the' general principles of my invention without departing from the spirit of my invention, as set forth in the claim.

Iclaim: A tubefor pneumatic tires, saidtube'having rim side re-inforcing fabric embedded therein, and also having fabric patchesem bedded therein inwardly and outwardly 'from'the rim side re-i nforcing fabric ina radial direction to form avalve base, substantially as set forth.

In testimony whereof I have hereunto 'af-' fixed mysignature. q

' ALBERT ENNIS HENDERS GN, 

